package Test;

import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

public class Main09 {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int n = input.nextInt();
        int[] arr = new int[n];
        for (int i = 0; i < n; i++) {
            arr[i] = input.nextInt();
        }
        input.close();
        Map<Integer, Integer> map = new HashMap<Integer, Integer>();
        for (int i = 0; i < n; i++) {
            if (map.get(arr[i]) == null)
                map.put(arr[i], 1);
            else
                map.put(arr[i], map.get(arr[i]) + 1);
        }
        int max = 0;
        for (int i = 0; i < n; i++) {
            if (map.get(arr[i]) > max)
                max = map.get(arr[i]);
        }
        System.out.println(max);

    }
}
